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对黑荆树两个试验点25个种源3年半的观察,结果表明:不同种源种子发芽率,苗高存在明显差异,各种源年周期枝梢生长有三次高峰期,生长量与日气温、月降雨量变化基本一致。本文还比较分析了各种源树高、胸径、树皮量、材积以及耐寒性等性状。
The results showed that the seed germination rate and seedling height of two provenances were significantly different. There were three peak periods of the growth of shoots in different provenances, Daily temperature, monthly rainfall changes basically the same. This paper also comparatively analyzed the characters of tree height, DBH, bark, volume and cold tolerance of all kinds of sources.